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Travel and Congestion Study Update. Johanna Zmud Project Director NuStats January 23, 2002. Introduction. Review data flow model Current Status Fall Post-Mortem Spring Production Strategies Data Results. Data Flow per Sample Type (6). Mode Intercept. Recruit. Travel . Retrieve.

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Presentation Transcript
travel and congestion study update
Travel and Congestion Study Update

Johanna Zmud

Project Director

NuStats

January 23, 2002

introduction
Introduction
  • Review data flow model
  • Current Status
  • Fall Post-Mortem
  • Spring Production Strategies
  • Data Results

Study Status Update

data flow per sample type 6
Data Flow per Sample Type (6)

Mode Intercept

Recruit

Travel

Retrieve

Edit Check

Deliver

Geocode

Study Status Update

GPS Recruit

GPS Data

Comparison

main sample mode augment sample
Main Sample Mode Augment Sample

Study Status Update

*Target mode used in 1 trip in household file

status delivered cases
Status – Delivered Cases

Study Status Update

*Trip data only; no raw GPS data; deliveries will start in February

spring production strategies
Spring Production Strategies
  • Increase CATI Capacity
  • Web survey
  • Use of Partial Completes

Study Status Update

increase cati capability
Increase CATI Capability
  • New DataSource facility in Texas (San Marcos)
  • Caltrans finished – These DataSource surveyors now on SCAG
  • Datascension (Riverside, CA)

Study Status Update

web survey option
Web Survey Option
  • Travel information retrieval (Main, RSA)
  • Mode effect measurement
  • www.surveycafe.com
  • Test next two weeks
  • Start using with February recruits

Study Status Update

current schedule
December 1 – 19, 2001

December 14, 2001

January 7, 2002

January 25, 2002

April 28, 2002

PnR to Rail and Bus Intercepts

Start Spring CATI Recruitment

First Spring Travel Day

Next Data Delivery

Last Travel Day

Current Schedule

Study Status Update

spring production plan
Spring Production Plan

Study Status Update

draft report
Draft Report
  • Draft delivered – Starting February 28
    • Methods Documentation and Data Users Guide
    • Survey Findings
    • Compendium of Tables
    • GPS Analysis
  • Census data for weighting and expansion not accessible until June 2002
  • Final report – raw or expanded?

Study Status Update

household trips by county of residence and sample type n 4 440 unweighted
Household Trips by County of Residence and Sample Type (N=4,440, unweighted)

Study Status Update

*1-day trip rates shown

** None or small number of cases

person trips by county of residence and sample type n 10 024 unweighted
Person Trips by County of Residence and Sample Type (N=10,024, unweighted)

Study Status Update

*1-day trip rates shown

** None or small number of cases

total vehicle and non vehicle trips by county of residence main sample unweighted
Total, Vehicle, and Non-Vehicle Trips by County of Residence (Main Sample, unweighted)

Study Status Update

total household trips by vehicle ownership by sample type unweighted
Total Household Trips by Vehicle Ownership by Sample Type (unweighted)

Study Status Update

* None or small number of cases

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